1/2 cup dry white wine
4 dozen littleneck clams, scrubbed
3 tablespoons unsalted butter
6 ounces thick-cut bacon, cut crosswise into 1/4-inch matchsticks
1 onion, finely chopped
3 garlic cloves, minced
2 celery ribs, finely diced
1 teaspoon chopped thyme
2 bay leaves
1 1/2 tablespoons white miso paste
1 cup heavy cream or half-and-half
3 Yukon Gold potatoes (1 1/2 pounds), peeled and cut into 3/4-inch cubes
Salt and freshly ground pepper
1 cup flat-leaf parsley leaves
1/2 cup canola oil